diff --git a/Cargo.lock b/Cargo.lock
index 9bcb00d7c..76f107590 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -62,12 +62,6 @@ dependencies = [
  "parking_lot_core",
 ]
 
-[[package]]
-name = "either"
-version = "1.11.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a47c1c47d2f5964e29c61246e81db715514cd532db6b5116a25ea3c03d6780a2"
-
 [[package]]
 name = "errno"
 version = "0.2.8"
@@ -109,7 +103,7 @@ dependencies = [
  "num-traits",
  "once_cell",
  "pcre2",
- "printf-compat",
+ "printf",
  "rand",
  "rand_pcg",
  "rsconf",
@@ -150,15 +144,6 @@ version = "0.14.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
 
-[[package]]
-name = "itertools"
-version = "0.9.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "284f18f85651fe11e8a991b2adb42cb078325c996ed026d994719efcfca1d54b"
-dependencies = [
- "either",
-]
-
 [[package]]
 name = "jobserver"
 version = "0.1.31"
@@ -356,17 +341,6 @@ dependencies = [
  "widestring",
 ]
 
-[[package]]
-name = "printf-compat"
-version = "0.1.1"
-source = "git+https://github.com/fish-shell/printf-compat.git?branch=fish#ff460021ba11e2a2c69e1fe04cb1961d6a75be15"
-dependencies = [
- "bitflags 1.3.2",
- "itertools",
- "libc",
- "widestring",
-]
-
 [[package]]
 name = "proc-macro2"
 version = "1.0.82"
diff --git a/Cargo.toml b/Cargo.toml
index 61f70668a..c849bc1e7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,7 +22,6 @@ default-run = "fish"
 [dependencies]
 pcre2 = { git = "https://github.com/fish-shell/rust-pcre2", branch = "master", default-features = false, features = ["utf32"] }
 fast-float = { git = "https://github.com/fish-shell/fast-float-rust", branch="fish" }
-printf-compat = { git = "https://github.com/fish-shell/printf-compat.git", branch="fish" }
 
 bitflags = "2.4.0"
 errno = "0.2.8"
@@ -35,6 +34,7 @@ lru = "0.10.0"
 nix = { version = "0.25.0", default-features = false, features = ["inotify", "resource", "fs"] }
 num-traits = "0.2.15"
 once_cell = "1.17.0"
+printf = { path = "./printf" }
 rand = { version = "0.8.5", features = ["small_rng"] }
 widestring = "1.0.2"
 terminfo = "0.9.0"
diff --git a/src/builtins/jobs.rs b/src/builtins/jobs.rs
index db4248c0f..7660091af 100644
--- a/src/builtins/jobs.rs
+++ b/src/builtins/jobs.rs
@@ -18,7 +18,7 @@
     wutil::{fish_wcstoi, wgettext_fmt},
 };
 use libc::c_int;
-use printf_compat::sprintf;
+use printf::sprintf;
 use std::num::NonZeroU32;
 use std::sync::atomic::Ordering;
 
diff --git a/src/builtins/printf.rs b/src/builtins/printf.rs
index 7ffd37a29..4c896c7f3 100644
--- a/src/builtins/printf.rs
+++ b/src/builtins/printf.rs
@@ -57,8 +57,7 @@
     wcstoi::{wcstoi_partial, Options as WcstoiOpts},
     wstr_offset_in,
 };
-use printf_compat::args::ToArg;
-use printf_compat::printf::sprintf_locale;
+use printf::{sprintf_locale, ToArg};
 
 /// Return true if `c` is an octal digit.
 fn is_octal_digit(c: char) -> bool {
@@ -266,10 +265,10 @@ macro_rules! append_output_fmt {
                 if !self.early_exit {
                     sprintf_locale(
                         &mut self.buff,
-                        $fmt,
+                        $fmt.as_char_slice(),
                         &self.locale,
-                        &[$($arg.to_arg()),*]
-                    )
+                        &mut [$($arg.to_arg()),*]
+                    ).expect("sprintf failed");
                 }
             }
         }
diff --git a/src/builtins/string/match.rs b/src/builtins/string/match.rs
index e625f9eb3..af0ff4da8 100644
--- a/src/builtins/string/match.rs
+++ b/src/builtins/string/match.rs
@@ -1,5 +1,5 @@
 use pcre2::utf32::{Captures, Regex, RegexBuilder};
-use printf_compat::sprintf;
+use printf::sprintf;
 use std::collections::HashMap;
 
 use super::*;
diff --git a/src/complete.rs b/src/complete.rs
index 8d129384f..2cf9feb0c 100644
--- a/src/complete.rs
+++ b/src/complete.rs
@@ -16,7 +16,7 @@
 };
 use bitflags::bitflags;
 use once_cell::sync::Lazy;
-use printf_compat::sprintf;
+use printf::sprintf;
 
 use crate::{
     abbrs::with_abbrs,
diff --git a/src/job_group.rs b/src/job_group.rs
index 5055999c3..a9ad2a798 100644
--- a/src/job_group.rs
+++ b/src/job_group.rs
@@ -41,8 +41,8 @@ fn to_wstring(&self) -> WString {
     }
 }
 
-impl<'a> printf_compat::args::ToArg<'a> for MaybeJobId {
-    fn to_arg(self) -> printf_compat::args::Arg<'a> {
+impl<'a> printf::ToArg<'a> for MaybeJobId {
+    fn to_arg(self) -> printf::Arg<'a> {
         self.as_num().to_arg()
     }
 }
diff --git a/src/key.rs b/src/key.rs
index d00036816..cfb580ef1 100644
--- a/src/key.rs
+++ b/src/key.rs
@@ -1,5 +1,3 @@
-use std::rc::Rc;
-
 use libc::VERASE;
 
 use crate::{
@@ -376,9 +374,9 @@ fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
     }
 }
 
-impl printf_compat::args::ToArg<'static> for Key {
-    fn to_arg(self) -> printf_compat::args::Arg<'static> {
-        printf_compat::args::Arg::BoxedStr(Rc::new(WString::from(self).into_boxed_utfstr()))
+impl printf::ToArg<'static> for Key {
+    fn to_arg(self) -> printf::Arg<'static> {
+        printf::Arg::WString(self.into())
     }
 }
 
diff --git a/src/locale.rs b/src/locale.rs
index 6785ed4da..99e0d94f0 100644
--- a/src/locale.rs
+++ b/src/locale.rs
@@ -1,5 +1,5 @@
 /// Support for the "current locale."
-pub use printf_compat::locale::{Locale, C_LOCALE};
+pub use printf::locale::{Locale, C_LOCALE};
 use std::sync::Mutex;
 
 /// Lock guarding libc `setlocale()` or `localeconv()` calls to avoid races.
diff --git a/src/parse_constants.rs b/src/parse_constants.rs
index 79df932eb..3b8d0eb73 100644
--- a/src/parse_constants.rs
+++ b/src/parse_constants.rs
@@ -235,9 +235,9 @@ pub fn to_wstr(self) -> &'static wstr {
     }
 }
 
-impl printf_compat::args::ToArg<'static> for ParseKeyword {
-    fn to_arg(self) -> printf_compat::args::Arg<'static> {
-        printf_compat::args::Arg::Str(self.to_wstr())
+impl printf::ToArg<'static> for ParseKeyword {
+    fn to_arg(self) -> printf::Arg<'static> {
+        printf::Arg::WStr(self.to_wstr())
     }
 }
 
diff --git a/src/parser.rs b/src/parser.rs
index 585d7b782..236816dc6 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -32,7 +32,7 @@
 use crate::wutil::{perror, wgettext, wgettext_fmt};
 use crate::{function, FLOG};
 use libc::c_int;
-use printf_compat::sprintf;
+use printf::sprintf;
 use std::cell::{Ref, RefCell, RefMut};
 use std::ffi::{CStr, OsStr};
 use std::os::fd::{AsRawFd, OwnedFd, RawFd};
diff --git a/src/proc.rs b/src/proc.rs
index 9f941856c..66a7d97ea 100644
--- a/src/proc.rs
+++ b/src/proc.rs
@@ -31,7 +31,7 @@
     _SC_CLK_TCK,
 };
 use once_cell::sync::Lazy;
-use printf_compat::sprintf;
+use printf::sprintf;
 use std::cell::{Cell, Ref, RefCell, RefMut};
 use std::fs;
 use std::io::{Read, Write};
diff --git a/src/tokenizer.rs b/src/tokenizer.rs
index c6d9521f0..a23bc6d9a 100644
--- a/src/tokenizer.rs
+++ b/src/tokenizer.rs
@@ -191,9 +191,10 @@ fn from(err: TokenizerError) -> Self {
     }
 }
 
-impl printf_compat::args::ToArg<'static> for TokenizerError {
-    fn to_arg(self) -> printf_compat::args::Arg<'static> {
-        printf_compat::args::Arg::Str(self.into())
+impl printf::ToArg<'static> for TokenizerError {
+    fn to_arg(self) -> printf::Arg<'static> {
+        let msg: &'static wstr = self.into();
+        printf::Arg::WStr(msg)
     }
 }
 
diff --git a/src/wutil/mod.rs b/src/wutil/mod.rs
index 49d8bbe1c..abb73978b 100644
--- a/src/wutil/mod.rs
+++ b/src/wutil/mod.rs
@@ -21,12 +21,14 @@
 use crate::wcstringutil::{join_strings, wcs2string_callback};
 use errno::errno;
 pub use gettext::{wgettext, wgettext_fmt, wgettext_maybe_fmt, wgettext_str};
-pub use printf::sprintf;
 use std::ffi::{CStr, OsStr};
 use std::fs::{self, canonicalize};
 use std::io::{self, Write};
 use std::os::unix::prelude::*;
 
+extern crate printf as extern_printf;
+pub use extern_printf::sprintf;
+
 pub use wcstoi::*;
 
 /// Wide character version of opendir(). Note that opendir() is guaranteed to set close-on-exec by
diff --git a/src/wutil/printf.rs b/src/wutil/printf.rs
index 880943230..859aac619 100644
--- a/src/wutil/printf.rs
+++ b/src/wutil/printf.rs
@@ -1,5 +1,5 @@
 // Re-export sprintf macro.
-pub use printf_compat::sprintf;
+pub use printf::sprintf;
 
 #[cfg(test)]
 mod tests {